edwards



(No Model.) A 2 Sheets-Sheet 1. D. EDWARDS.

FEEDWATER REGULATOR. No. 278,112. A Patented May 22,1883.

.H T p- I WITNESSES: INVENTOR v I 3 mm 1 Awzwie ATTORNEYS (No Model.) 2Shets-Sheet 2.

D. EDWARDS.

FBEDWATER REGULATOR. No. 278,112. Patented May 22,1883.

WITNESSES: INVENTOR 4 4; C, hard Ekwwva ATTORNEYS UNITED STATES PATENTOFFICE.

DAVID EDWARDS, OF NEW YORK, N. Y.

FEED-WATER REGULATOR.

SPECIFICATION forming part of Letters Patent No. 278,112, dated May 22,1833.

Application filed April 12, 1883. (No model.)

In all whom it may concern:

Be it known that-I, DAVID EDWARDS, acitizen of the UnitedStates,residing atNew York, in the coun'tyand State of New York, haveinvented new and useful Improvements in Feed Vvater Regulators. of whichthe following is a specification.

rod passes, and a pipe emanating from the valve-chamber, so that whenthe pot is placed with its middle on alevel withthe mean'waterline of asteam-boiler and the pipes extending from the same are connected onewith the steam-space and the other with the water-space ot' the boilerthe valve will be opened automatically Whenever the water in the boilersinks below its mean-water-line, and steam will pass through the pipeemanating from the valve-chamber to impart motion to the feedpump, orwater under pressure will flow through said pipe directly into the pot,and consequently into the boilenuntil the float rises and the valve isclosed.

In the accompanying drawings, Figure 1 represents a vertical section ofmy pot in the plane a: .r, Fig. 2. Fig. 2 is a horizontal section in theplane y y, Figs. 1 and 3, on a larger scale than the previous figure.Fig. 3 is an inside face view of the valve-chamber. Fig. 4 is asectional view of a boiler with myattachment when connected to thefeed-pump.

Similar letters indicate corresponding parts.

In these drawings, the letter A designates the pot, which is bypreference made in halves and with a circular cross-section, but whichmaybe made in any form or shape suitable for the purpose. From the toppart of this pot extends a pipe, B, which is intended to connect withthe steam-space of a boiler, (see Fig.

4,) and from the bottom part of the pot extends a pipe, 0, which isintended to connect with the water-space of the boiler, the pot beingplaced at such a level that when the water in the boiler rises to themean water-line the pot is about half-filled with water, as indicated inFig. 1. In theinterior of the pot is the float D, which connects by arod. E, with a valve, F, situated in a chamber, G, which is secured tothe pot, as shown in Figs. 1, 2, and 4. Said valve has two disks, a Iand in the interior of the "alve-chamber are formed two seats, a I), onefor each of the valve-disks, as shown in Fig. 2. The space 0, outside ofthedisks a. I), communicates with a pipe, H, which extends from thevalve-cl.1an1 ber, and which may either be connected to the steam-chestot' the feedpump I, as shown in Fig. 4, or which may be connected with awater tank or reservoir situated at such an elevation that the waterwill flow from it under a certain pressure. The stem 01 of the valve Fextcnds'through astufl' ing-box, e, and on its end is mounted a cam, f,the object of which will be presently explained. The rod E, whichconnects the float with the valve, extends through an oblique slot, 9,(best seen in Fig. 3,) which is formed in a disk, It, secured to theinner face of the valve-chamber G. If this slot were made perpendicular,the rising and falling motion of the float would simply produce anoscillating mo tion of the valve F; but by the oblique slot the valve ismoved away from its seats when the float Dsinks down, and when the floatrises the valve is causedto close on its seats. The disk h, whichcontains the oblique slot, is perforated with a number of holes, Fig. 3,so that when the float sinks down and the valve is movedaway from itsseats a free communicaficient supply ofwater is beiugforced into theboiler to retain practically a constant level. The cam f on the stem ofthe valve F is intended to start a steam-whistle whenever the float inthe pot sinks down, and said cam can be easily so adjusted that theattention of the engineer'is awakened it the feed-pump, from This pumpis set in motion, and a suf tion is opened between the interior of thepot IOO closed and the supply of water is cut off.

some cause, should not act. If my pot is connected to alow-pressnrcboiler, and if there is a supply of water under pressure sufiicientlygreater than the boiler-pressure, the pipe H may be connected directlyto the water-supply pipe, and when the float sinks down and the valve Fis opened the water [lows into the pot against the pressure of thesteam, which is supposed to be, say, ten pounds, while the water flowsunder a pressure of, say, twenty pounds to the square inch. From the potthe water flows directly into the boiler until the high-water line isreached, when' the valve F I am aware of the patentgranted to Silas 0.Salisbury, dated ()ctober3, 1882, and numbered 265,542, and I do notwish to claim as my invention anything shown and described in thispatent. The float contained in my pot is connected directly to abalanced valve by a rod which passes through an oblique slot. By thisarrangement a multiplicity ot'joints is avoided, l and the supply ofwater to the boiler is con- 1 trolled without fail. In fact I haveadapted the steam-trap described in my Patent No. 244,571 to act as afeed-water regulator.

W'hat I claim asnew,and desire to secure by Letters Patent, is

The combination, substantially as hereinbefore described, of the pot,the two pipes, one extending from the top part and the other from thebottom part of said pot, the float situated in the pot, thevalve-chamber connected to the pot and communicating with the same, thebalanced valve inclosed in said valvechamber, the rod connecting thefloat directly with the valve, the oblique slot through which said rodpasses, and the pipe emanating from the valve-chamber.

In testimony whereof I have hereunto set my hand and seal in thepresence of two subscribing witnesses.

DAVID EDWARDS. [11.8.]

\Vitnesses:

W. HAUFF, E. F. KAsTENHUBER.

